CN107447613A - A kind of deep super embankment on soft soil and construction method - Google Patents
A kind of deep super embankment on soft soil and construction method Download PDFInfo
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- CN107447613A CN107447613A CN201710636490.8A CN201710636490A CN107447613A CN 107447613 A CN107447613 A CN 107447613A CN 201710636490 A CN201710636490 A CN 201710636490A CN 107447613 A CN107447613 A CN 107447613A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C3/00—Foundations for pavings
- E01C3/04—Foundations produced by soil stabilisation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Agronomy & Crop Science (AREA)
- General Engineering & Computer Science (AREA)
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- Piles And Underground Anchors (AREA)
Abstract
The present invention relates to a kind of deep super embankment on soft soil, including：Embankment, soil cement divider wall, stabilization zone solidification soil cement, transition region solidification soil cement, drainage blanket, the prefabricated node of cross, isolation geotextiles, reinforced concrete box plate, the prefabricated node of a word, sheet pile with ribbing and quick grouting equipment；The sheet pile with ribbing reaches ultra-soft soil layer through stabilization zone solidification soil cement, and sheet pile with ribbing carries circular hole in prefabricated sheet pile foundation on principal rod of the fixed position using vertical dowel B bendings as rib, its middle rib；It is overall to be respectively used to provided with rectangle anchor plate, circular anchor plate by vertical dowel A, vertical dowel B anchoring.The beneficial effects of the invention are as follows：Stabilization zone solidification soil cement, transition region solidification soil cement, rigid pile, reinforced concrete sash plate, enhance the overall stress of roadbed, greatly reduce the differential settlement of ground, vertical drainage body, drainage blanket efficiently solve work groundwork drainage problem.
Description
Technical field
The present invention relates to expressway works and foundation treatment technology field, refers specifically to deep super embankment on soft soil and construction party
Method.
Background technology
Over nearly more than 40 years, deep super soft ground Embankment Subsidence and stable problem are interesting.Due to the complex nature of the problem,
It is to perplex the difficult problems that engineering is smoothly implemented that rational Ground Treatment Schemes how are formulated in process of construction.Corniche road
Dike is mostly deep soft soil foundation, and ground is weak and does not almost have crust layer, and native microstructure and genesis mechanism are complicated and changeable, thing
Reason model and its parameter have heterogencity, anisotropy and uncertainty.Highway is a kind of linear banding engineering, Binhai Highway
Often pass through different geomorphic units.The engineering-environment complicated in face of Coastal Area in Zhejiang Province, for without crust layer, high-moisture
(ω >=60~100%), high void ratio (e >=1.8~2.0), shearing strength are low, high sensitivity, infiltration coefficient very little, thickness are big
The deformation characteristic of the stream plasticity mud of (H0 >=40~60m), still have in terms of technical data and project data accumulation at present a lot
Deficiency.Due to the complexity of engineering-environment and the uncertainty of ground character, deep super soft ground embankment construction is faced with
Many technical barriers, wherein most importantly overcoming the differential settlement of highway.
Before making the present invention, Chinese invention " the sheet pile combined structure " (patent No.：CN101298776A a kind of plate) is provided
Stake combining structure, it is characterised in that by Prefabricated reinforced concrete pile tube, Prefabricated reinforced concrete baffle plate, reinforced concrete longitudinal beam and transverse beam group
Into, the structure globality and stability be good, rigidity is big.But the technology still suffers from embankment lateral displacement big, differential settlement
Still the problem of notable, and do not account for draining, embankment periphery mound Load Problems after work.
The content of the invention
Present invention aim to solve the deficiency of above-mentioned background technology, there is provided a kind of deep super embankment on soft soil and construction
Method.
In order to realize above-mentioned technical purpose, present invention employs following technical scheme：
Deep super embankment on soft soil, including embankment, soil cement divider wall, stabilization zone solidification soil cement, transition region solidification cement
The prefabricated node of soil, drainage blanket, cross, isolation geotextiles, reinforced concrete box plate, the prefabricated node of a word, sheet pile with ribbing and
Quick grouting equipment；The sheet pile with ribbing reaches ultra-soft soil layer through stabilization zone solidification soil cement, and sheet pile with ribbing is in prefabricated sheet pile
On the basis of vertical dowel B bent in fixed position principal rod as rib, carry circular hole on its middle rib；Anchored provided with rectangle
Steel plate, circular anchor plate be respectively used to be by vertical dowel A, vertical dowel B anchoring it is overall, circular anchor plate it is straight
The length of side of footpath and rectangle anchor plate is respectively less than anchor slot diameter；The prefabricated intra-node of cross forms transverse direction provided with deformed bar
Dowel A；The prefabricated node of cross leaves bottom embedded groove and top anchor groove in longitudinal and transverse intersection, and top is top anchor groove,
Bottom is bottom embedded groove, and the diameter of groove is wider than the diameter of back cover pile tube with holes, and intersection leaves vertical dowel through hole A,
The diameter in hole is more than the vertical dowel A of stake diameter；The prefabricated node of cross is provided with drainpipe, connection step in end, prefabricated
The lateral connection muscle A of node stretches out certain length at step.
The back cover pile tube with holes uses back cover drainage type pile tube, fills core with sand or rubble, using pervious concrete or sets
Permeable hole, slurry outlet is set in pile body.
The isolation geotextiles are covered in above drainage blanket, for isolating the concrete of top construction.
The length that each 1/4 section of the prefabricated node of cross is 2.2~2.4m top anchor 30~50mm of groove depth, bottom embedded groove
Deep 30~50mm.
The length of each 1/2 section of the prefabricated node of one word is 2.2~2.4m, and inside forms transverse direction provided with deformed bar
Dowel B, vertical dowel through hole B, the diameter in hole are more than the vertical dowel B of stake diameter.
The quick grouting equipment includes：Slip casting pipeline section not with holes, slip casting pipeline section, upper spacer, lower clapboard and foam with holes
Bed course；The upper spacer, lower clapboard and Grouting Pipe weld together.
The construction method of deep super embankment on soft soil, comprises the following steps：
1st, site clearing, in the range of the width that should satisfy the need, ground top layer fertile soil, table soil, turf etc. cleared up；
2nd, partition wall construction：Sheet pile with ribbing is squeezed into ultra-soft soil layer, Soft Soil Layer, the prefabricated node of a word is installed, using rectangle
The anchoring of vertical dowel B anchor bolts is linked as entirety by anchor plate；Slightly expanded concrete B sealing of holes are filled after；According to prefabricated
Bent cap size excavation groove links lateral connection muscle B colligations to be formed to be formed with some strength and integrally-built prefabricated bent cap
It is overall, to resist soil lateral pressure caused by the mound of periphery；
3rd, solidification soil cement in stabilization zone is constructed and pushed ahead, and utilizes a series of caused things between curing agent and ultra-soft soil
Physicochemical reacts, and makes weak soil scleroma into the high-quality ground with globality, water stability and some strength；
4th, transition region solidification soil cement, stabilization zone solidification soil cement are constructed and pushed ahead, and utilize curing agent and ultra-soft soil
Between caused a series of physical chemical reaction make weak soil scleroma into high-quality with globality, water stability and some strength
Base；
5th, foundation pile construction：Back cover pile tube with holes is squeezed into before cement solidification, after 48 hours, is noted with quick grouting equipment
Slurry；Quick grouting equipment slip casting is inserted into back cover pile tube with holes using machinery, slowly push belt reaches and specifies pulp inwards
Stop insertion during hole site, cement mortar injection, slip casting pipeline section with holes does not inject, due to upper spacer, lower clapboard, foam carpet with
Back cover pile tube inwall fitting with holes, cement mortar form slip casting around pile area from slip casting pipeline section pulp with holes；Then above carry, reach successively
To stopping above carrying during next pulp hole site, slip casting, operate successively；
6th, groove is excavated according to reinforced concrete box board size；
7th, lay drainage blanket and be compacted；
8th, the laying isolation geotextiles at the top of drainage blanket, for isolating top soil；
9th, the prefabricated node of cross is filled, the anchoring of vertical dowel A anchor bolts is linked as by entirety using circular anchor plate；Adopt
With rear filling slightly expanded concrete A sealing of holes；Vertical dowel A anchorings are linked as entirety；
10th, with reinforcing bar colligation or lateral connection muscle A is welded to connect, pouring reinforcement concrete sash plate；
11st, after reinforced concrete box plate reaches the 70%~80% of design strength, embankment and follow-up side are carried out
Ditch, lateral row water hole, backfill planting soil and guardrail construction.
The beneficial effects of the invention are as follows：The ground mistake that divider wall solves work rear perimeter edge mound and WATER LEVEL CHANGES is brought
Steady problem, stabilization zone solidification soil cement, transition region solidify soil cement, rigid pile, reinforced concrete sash plate, enhance the entirety of roadbed
Stress, greatly reduces the differential settlement of ground, and vertical drainage body, drainage blanket efficiently solve work groundwork draining and asked
Topic.
Brief description of the drawings
Fig. 1 is the structure section figure of the deep super embankment on soft soil of the present invention and construction method；
Fig. 2 is the prefabricated node schematic diagram of cross；
Fig. 3 is the prefabricated node A-A diagrammatic cross-sections of cross；
Fig. 4 is sheet pile schematic diagram with ribbing；
Fig. 5 is sheet pile B-B diagrammatic cross-sections with ribbing；
Fig. 6 is the prefabricated node schematic diagram of a word；
Fig. 7 is rectangle anchor plate schematic diagram；
Fig. 8 is circular anchor plate schematic diagram；
Fig. 9 is quick grouting equipment schematic diagram；
Figure 10 is construction flow chart.
In figure：1-embankment, 2-ultra-soft soil layer, 3-Soft Soil Layer, 4-stabilization zone solidification soil cement, the solidification of 5-transition region
Soil cement, 9-back cover pile tube with holes, 10-slurry outlet, 11-slip casting around pile area, 12-drainage blanket, the prefabricated section of 13-cross
Point, 14-vertical dowel A, 15-bottom embedded groove, 16-top anchor groove, 17-vertical dowel through hole A, 18-anchor
Gu groove top portion fills core, 19-filling slightly expanded concrete A, 20-rectangle anchor plate, 21-circular anchor plate, 22-anchoring afterwards
Steel plate through hole, 23-connection step A, 24-lateral connection muscle A, 25-drainpipe, 26-isolation geotextiles, 27-gutter,
28-lateral row water hole, 29-backfill planting soil, 30-reinforced concrete box plate, the prefabricated node of 31-one word, 32-guardrail,
33-sheet pile with ribbing, 34-vertical dowel B, 35-vertical dowel through hole B, 36-are rear fill slightly expanded concrete B, 37-
Connect step B, 38-lateral connection muscle B, 39-quick grouting equipment, 40-slip casting pipeline section not with holes, 41-Grouting Pipe with holes
Section, 42-upper spacer, 43-lower clapboard, 44-foam carpet, 45-anchor bolt, 46-prefabricated bent cap.
Specific embodiment
The specific embodiment of the present invention is elaborated below in conjunction with the accompanying drawings.
Fig. 1 is the structure section figure of the deep super embankment on soft soil of the present invention and construction method；Fig. 2 is the prefabricated node signal of cross
Figure；Fig. 4 is sheet pile schematic diagram with ribbing；Fig. 6 is the prefabricated node schematic diagram of a word.Shown deep super embankment on soft soil and construction method,
The deep super embankment on soft soil and construction method mainly include embankment 1, stabilization zone solidification soil cement 4, transition region solidification cement
Soil 5, back cover pile tube 9 with holes, drainage blanket 12, the prefabricated node 13 of cross, isolation geotextiles 26, reinforced concrete box plate 30,
The prefabricated node 31 of one word, sheet pile with ribbing 33, quick grouting equipment 39；The divider wall 6 uses prefabricated sheet pile, the prefabricated bent cap in top
46 are linked as entirety.
The deep super embankment on soft soil of the present embodiment, including embankment 1, soil cement divider wall 6, stabilization zone solidification soil cement 4, mistake
Cross area's solidification soil cement 5, drainage blanket 12, the prefabricated node 13 of cross, isolation geotextiles 26, reinforced concrete box plate 30, one
The prefabricated node 31 of word, sheet pile with ribbing 33 and quick grouting equipment 39；The sheet pile with ribbing 33 arrives through stabilization zone solidification soil cement 4
Up to ultra-soft soil layer 2, sheet pile 33 with ribbing in prefabricated sheet pile foundation fixed position using vertical dowel B34 bend as rib by
Power muscle, circular hole is carried on its middle rib；It is respectively used to provided with rectangle anchor plate 20, circular anchor plate 21 by vertical dowel
To be overall, the diameter of circular anchor plate 21 and the length of side of rectangle anchor plate 20 are respectively less than for A14, vertical dowel B34 anchoring
Anchor slot diameter；The prefabricated inside of node 13 of cross is provided with deformed bar and forms lateral connection muscle A24；The prefabricated node 13 of cross exists
Longitudinal and transverse intersection leaves bottom embedded groove 15 and top anchor groove 16, and top is top anchor groove, and bottom is bottom embedded groove,
The diameter of groove is wider than the diameter of back cover pile tube 9 with holes, and intersection leaves vertical dowel through hole A17, and the diameter in hole is more than stake
Vertical dowel A14 diameter；The prefabricated node of cross is provided with drainpipe 25, connection step 23, the horizontal stroke of prefabricated node in end
Certain length is stretched out at step to dowel A24.
The back cover pile tube 9 with holes uses back cover drainage type pile tube, fills core with sand or rubble, using pervious concrete or sets
Permeable hole, slurry outlet 10 is set in pile body.
The isolation geotextiles 26 are covered in above drainage blanket, for isolating the concrete of top construction.
The length of 13 each 1/4 sections of the prefabricated node of cross is 2.2~2.4m top anchor 30~50mm of groove depth, and bottom is embedded in
30~50mm of groove depth.
The length of prefabricated 31 each 1/2 sections of the node of one word is 2.2~2.4m, and inside forms horizontal stroke provided with deformed bar
To dowel B38, vertical dowel through hole B35, the diameter in hole is more than the vertical dowel B34 of stake diameter.
The quick grouting equipment 39 includes：Slip casting pipeline section 40 not with holes, slip casting pipeline section 41 with holes, upper spacer 42, under every
Plate 43 and foam carpet 44；The upper spacer 42, lower clapboard 43 weld together with Grouting Pipe.
Above-mentioned deep super embankment on soft soil and construction method work progress mainly include the following steps that：
1st, site clearing, in the range of the width that should satisfy the need, ground top layer fertile soil, table soil, turf etc. cleared up；
2nd, partition wall construction：Sheet pile 33 with ribbing is squeezed into ultra-soft soil layer 2, Soft Soil Layer 3, the prefabricated node 31 of a word is installed, adopted
The anchoring of vertical dowel B34 anchor bolts 45 is linked as entirety with rectangle anchor plate 20.Slightly expanded concrete B36 is filled after
Sealing of hole.Groove is excavated according to the prefabricated size of bent cap 46 lateral connection muscle B colligations are linked to be formed with some strength and overall knot
The prefabricated bent cap 46 of structure forms entirety, to resist soil lateral pressure caused by the mound of periphery；
3rd, solidification soil cement in stabilization zone is constructed and pushed ahead, and utilizes a series of caused things between curing agent and ultra-soft soil
Physicochemical reacts, and makes weak soil scleroma into the high-quality ground with globality, water stability and some strength；
4th, transition region solidification soil cement 5, stabilization zone solidification soil cement 4 are constructed and pushed ahead, and utilize curing agent and ultra-soft
Caused a series of physical chemical reaction makes weak soil scleroma into the high-quality of globality, water stability and some strength between soil
Ground；
5th, foundation pile construction：Back cover pile tube 9 with holes is squeezed into before cement solidification, after 48 hours, with quick grouting equipment
Slip casting.The quick slip casting of grouting equipment 39 is inserted into back cover pile tube 9 with holes using machinery, slowly push belt arrival is specified inwards
Stop insertion during 10 position of slurry outlet, cement mortar is injected slip casting pipeline section 40 not with holes and injected, due to upper spacer 42, lower clapboard
43rd, foam carpet 44 is bonded with the inwall of back cover pile tube 9 with holes, and cement mortar forms slip casting around pile from the pulp of slip casting pipeline section 41 with holes
Area.Then above carry successively, stop above carrying when reaching next 10 position of slurry outlet, slip casting, operate successively.
6th, groove is excavated according to the size of reinforced concrete box plate 30；
7th, lay drainage blanket 12 and be compacted；
8th, it is native for isolating top in the top of drainage blanket 12 laying isolation geotextiles 26；
9th, the prefabricated node 13 of cross is filled, using circular anchor plate 20 by the vertical company of anchoring of dowel A14 anchor bolts 45
For entirety.Slightly expanded concrete A19 sealing of holes are filled after.Vertical dowel A14 anchorings are linked as entirety；
10th, with reinforcing bar colligation or lateral connection muscle A24 is welded to connect, pouring reinforcement concrete sash plate 30；
11st, after reinforced concrete box plate reaches the 70%~80% of design strength, progress embankment 1 fills and follow-up side
Ditch 27, lateral row water hole 28, backfill planting soil 29, guardrail 32 are constructed.
Claims (7)
1. a kind of deep super embankment on soft soil, it is characterised in that including embankment (1), soil cement divider wall (6), stabilization zone solidification water
Soil (4), transition region solidification soil cement (5), drainage blanket (12), the prefabricated node of cross (13), isolation geotextiles (26), reinforcing bar
Concrete frame panel (30), the prefabricated node of a word (31), sheet pile with ribbing (33) and quick grouting equipment (39)；The sheet pile with ribbing
(33) ultra-soft soil layer (2) is reached through stabilization zone solidification soil cement (4), sheet pile (33) with ribbing is in prefabricated sheet pile foundation in fixation
Position bends vertical dowel B (34) principal rod as rib, and circular hole is carried on its middle rib；Provided with rectangle anchor plate
(20), circular anchor plate (21) is respectively used to vertical dowel A (14), vertical dowel B (34) anchorings to be overall, circular
The diameter of anchor plate (21) and the length of side of rectangle anchor plate (20) are respectively less than anchor slot diameter；In the prefabricated node of cross (13)
Portion is provided with deformed bar and forms lateral connection muscle A (24)；The prefabricated node of cross (13) leaves bottom insertion in longitudinal and transverse intersection
Groove (15) and top anchor groove (16), top are top anchor groove, and bottom is bottom embedded groove, and the diameter of groove is wider than back cover with holes
The diameter of pile tube (9), intersection leave vertical dowel through hole A (17), and the diameter in hole is more than the vertical dowel A (14) of stake
Diameter；The prefabricated node of cross is provided with drainpipe (25), connection step (23), the lateral connection muscle A of prefabricated node in end
(24) certain length is stretched out at step.
2. deep super embankment on soft soil according to claim 1, it is characterised in that the back cover pile tube (9) with holes is using envelope
Bottom drainage type pile tube, fills core with sand or rubble, using pervious concrete or sets permeable hole, and slurry outlet (10) is set in pile body.
3. deep super embankment on soft soil according to claim 1, it is characterised in that described isolation geotextiles (26) row of being covered in
Above water subfill, for isolating the concrete of top construction.
4. deep super embankment on soft soil according to claim 1, it is characterised in that each 1/4 section of the prefabricated node of cross (13)
Length be 2.2~2.4m top anchor 30~50mm of groove depth, bottom 30~50mm of insertion groove depth.
5. deep super embankment on soft soil according to claim 1, it is characterised in that the prefabricated node of a word (31) each 1/
2 sections of length is 2.2~2.4m, and inside is provided with deformed bar and forms lateral connection muscle B (38), vertical dowel through hole B
(35), the diameter in hole is more than the diameter of the vertical dowel B (34) of stake.
6. deep super embankment on soft soil according to claim 1, it is characterised in that the quick grouting equipment (39) includes：
Slip casting pipeline section (40), slip casting pipeline section with holes (41), upper spacer (42), lower clapboard (43) and foam carpet (44) not with holes；It is described
Upper spacer (42), lower clapboard (43) weld together with Grouting Pipe.
7. a kind of construction method of deep super embankment on soft soil as claimed in claim 1, it is characterised in that comprise the following steps：
First, site clearing, in the range of the width that should satisfy the need, ground top layer fertile soil, table soil, turf etc. cleared up；
2nd, partition wall construction：Sheet pile with ribbing (33) is squeezed into ultra-soft soil layer (2), Soft Soil Layer (3), the prefabricated node of a word is installed
(31) anchoring of vertical dowel B (34) anchor bolt (45), is linked as by entirety using rectangle anchor plate (20)；Filled after micro-
Expansive concrete B (36) sealing of hole；Excavating groove according to prefabricated bent cap (46) size and lateral connection muscle B colligations are linked to be formed has
Some strength and integrally-built prefabricated bent cap (46) form entirety, to resist soil lateral pressure caused by the mound of periphery；
3rd, solidification soil cement in stabilization zone is constructed and pushed ahead, and utilizes caused a series of physical between curing agent and ultra-soft soil
Chemical reaction, make weak soil scleroma into the high-quality ground with globality, water stability and some strength；
4th, transition region solidification soil cement (5), stabilization zone solidification soil cement (4) are constructed and pushed ahead, and utilize curing agent and ultra-soft
Caused a series of physical chemical reaction makes weak soil scleroma into the high-quality of globality, water stability and some strength between soil
Ground；
5th, foundation pile construction：Back cover pile tube (9) with holes is squeezed into before cement solidification, after 48 hours, is noted with quick grouting equipment
Slurry；Quick grouting equipment (39) slip casting is inserted into back cover pile tube (9) with holes using machinery, slowly push belt arrival refers to inwards
Stop insertion when determining slurry outlet (10) position, cement mortar injection slip casting pipeline section (40) not with holes injected, due to upper spacer (42),
Lower clapboard (43), foam carpet (44) are bonded with back cover pile tube (9) inwall with holes, and cement mortar goes out from slip casting pipeline section (41) with holes
Slurry, form slip casting around pile area；Then above carry successively, stop above carrying when reaching next slurry outlet (10) position, slip casting, grasp successively
Make；
6th, groove is excavated according to reinforced concrete box plate (30) size；
7th, lay drainage blanket (12) and be compacted；
8th, the laying isolation geotextiles (26) at the top of drainage blanket (12), for isolating top soil；
9th, the prefabricated node of cross (13) is filled, using circular anchor plate (20) by vertical dowel A (14) anchor bolt (45) anchor
It is connected as entirety；Slightly expanded concrete A (19) sealing of hole is filled after；The anchoring of vertical dowel A (14) is linked as entirety；
Tenth, with reinforcing bar colligation or lateral connection muscle A (24) is welded to connect, pouring reinforcement concrete sash plate (30)；
11, after reinforced concrete box plate reaches the 70%~80% of design strength, progress embankment (1) fills and follow-up side
Ditch (27), lateral row water hole (28), backfill planting soil (29) and guardrail (32) construction.
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| CN201710636490.8A CN107447613B (en) | 2017-07-31 | 2017-07-31 | Deep and ultra-soft soil embankment and construction method |
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| CN201710636490.8A CN107447613B (en) | 2017-07-31 | 2017-07-31 | Deep and ultra-soft soil embankment and construction method |
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| CN108265704A (en) * | 2018-03-26 | 2018-07-10 | 东北大学 | A kind of anti-liquefaction stake of laminated soil Non-carrying type |
| CN108330764A (en) * | 2018-04-12 | 2018-07-27 | 浙江大学城市学院 | Shallow-layer cures Piled Embankments and construction method |
| CN109267568A (en) * | 2018-09-28 | 2019-01-25 | 中铁二院工程集团有限责任公司 | A kind of CFG pile composite foundation structure and construction method |
| CN109881668A (en) * | 2019-03-15 | 2019-06-14 | 中国十九冶集团有限公司 | For soft layer, banket and the foundation construction method of sandy soils |
| CN110644308A (en) * | 2019-10-16 | 2020-01-03 | 四川齐峰建设工程有限公司 | Construction method for paving road on debris flow soft foundation |
| CN110886287A (en) * | 2019-09-29 | 2020-03-17 | 中交第一航务工程勘察设计院有限公司 | Shallow soft soil foundation curing structure and construction method thereof |
| CN111519477A (en) * | 2020-05-29 | 2020-08-11 | 中铁二院工程集团有限责任公司 | Transition section structure of overhead pile plate structure and embankment and construction method thereof |
| CN112942361A (en) * | 2021-01-28 | 2021-06-11 | 中国电建集团华东勘测设计研究院有限公司 | Deep cushion layer formed by quickly filling foam concrete and pouring method |
| CN114411464A (en) * | 2021-12-24 | 2022-04-29 | 吕永涛 | Bridgehead settlement prevention and control method for highway maintenance |
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